Open AccessA hybrid tool for spectral ray tracing simulations of luminescent cascade systems
Author(s) -
Sven Leyre,
Jana Ryckaert,
Paula Acuña,
Jan Audenaert,
Youri Meuret,
Guy Durinck,
Johan Hofkens,
Geert Deconinck,
Peter Hanselaer
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.024582
Subject(s) - cascade , ray tracing (physics) , optics , monte carlo method , computer science , distributed ray tracing , computation , absorption (acoustics) , luminescence , wavelength , optoelectronics , materials science , algorithm , physics , mathematics , chemistry , statistics , chromatography
To perform adequate simulations of luminescent cascade systems, a hybrid method combining a commercial ray tracer and a programming tool is presented. True Monte Carlo algorithms for luminescent materials, treating each ray individually, are adapted to allow wavelength conversion of ray sets. Two solutions for the wavelength conversion of ray sets are discussed: a random approach, where absorption events are randomly selected to create emission events, and a combined approach, where information from multiple absorption events is combined to create emission events. Both methods are applied to simulate the performance of a virtual remote phosphor light-emitting diode module. When using the combined approach, the required computation time to achieve sufficient accuracy is a factor 2 lower, compared to the time required when applying the random approach.